4.2.0

• Bugfix: Libbulletjme issue #7 (GImpact contact tests always fail)
• Dump the bounds and ignore list of each PhysicsGhostObject.
• Added hasClosest() and hasContact() methods to the CollisionSpace class.
• Added a public getShapeType() method to the CollisionShape class.
• Document the lack of collision detection between 3 concave shapes.
• Updated the native libraries to v10.5.0 of Libbulletjme, which includes Bullet v2 updates through 12 May 2021.